Exactly right. It probably makes sense to read reviews from sites that pick older releases apart to make sure it's worth it. I know I'd re-think a couple of decisions if I had done that. Newer releases are a no brainer though. I don't buy regular DVD anymore.

That said, I did buy Natural Born Killers on Blu-ray, yep, some of it is shot in 8mm film, and it looks bad, but I love the film and needed it in the newest format. You can, and likely rightly so, argue it was a waste of money, but I now own it so I would argue otherwise.....